Talk:Proposals:Autopilot related: Difference between revisions
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m (→Autopilot Issues: adding links to related jsbsim tracker discussions) |
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= Autopilot Issues = | = Autopilot Issues = | ||
* | * {{forum url|t=6232}} | ||
* "There is one type of autopilot problem that's more difficult fix though: the autopilot controllers and filters should run at a constant rate and although a <rate> parameter was added and initially worked, I think it may have become broken at some point and the rate at which the controllers and filters operate depends more upon the frame rate than anything else. Because the rate at which the controllers work is critical, depending upon the gains used, a controller that might be stable on one system might become unstable on a slower, or even sometimes a faster system (I've seen this sort of problems happen both ways)." [http://www.mail-archive.com/flightgear-devel@lists.sourceforge.net/msg25859.html] (also see [http://sourceforge.net/mailarchive/forum.php?thread_name=E1NO9gk-0005T9-DH%40565xhf1.ch3.sourceforge.com&forum_name=jsbsim-devel] and [http://sourceforge.net/tracker/?func=detail&atid=369399&aid=1507926&group_id=19399]) | * "There is one type of autopilot problem that's more difficult fix though: the autopilot controllers and filters should run at a constant rate and although a <rate> parameter was added and initially worked, I think it may have become broken at some point and the rate at which the controllers and filters operate depends more upon the frame rate than anything else. Because the rate at which the controllers work is critical, depending upon the gains used, a controller that might be stable on one system might become unstable on a slower, or even sometimes a faster system (I've seen this sort of problems happen both ways)." [http://www.mail-archive.com/flightgear-devel@lists.sourceforge.net/msg25859.html] (also see [http://sourceforge.net/mailarchive/forum.php?thread_name=E1NO9gk-0005T9-DH%40565xhf1.ch3.sourceforge.com&forum_name=jsbsim-devel] and [http://sourceforge.net/tracker/?func=detail&atid=369399&aid=1507926&group_id=19399]) | ||
* http://www.mail-archive.com/flightgear-devel@lists.sourceforge.net/msg25856.html | * http://www.mail-archive.com/flightgear-devel@lists.sourceforge.net/msg25856.html | ||
* http://www.mail-archive.com/flightgear-devel@lists.sourceforge.net/msg25866.html | * http://www.mail-archive.com/flightgear-devel@lists.sourceforge.net/msg25866.html | ||
Latest revision as of 07:14, 11 June 2019
Autopilot Issues
- https://forum.flightgear.org/viewtopic.php?t=6232
- "There is one type of autopilot problem that's more difficult fix though: the autopilot controllers and filters should run at a constant rate and although a <rate> parameter was added and initially worked, I think it may have become broken at some point and the rate at which the controllers and filters operate depends more upon the frame rate than anything else. Because the rate at which the controllers work is critical, depending upon the gains used, a controller that might be stable on one system might become unstable on a slower, or even sometimes a faster system (I've seen this sort of problems happen both ways)." [1] (also see [2] and [3])
- http://www.mail-archive.com/flightgear-devel@lists.sourceforge.net/msg25856.html
- http://www.mail-archive.com/flightgear-devel@lists.sourceforge.net/msg25866.html